Hydrothermal Vents and Mid-Ocean Ridges

Catalog description

Credits 3. 3 Lecture Hours. COURSE OVERVIEW. This course delves into the science of mid-ocean ridges and hydrothermal vent systems, focusing on the geological, chemical and biological processes that define these unique ecosystems. Students will explore how plate tectonics shape the formation of hydrothermal systems, the chemistry of vent fluids and how vent organisms interact with their environment. The course examines the latest research on vent microbiology, symbioses and biogeochemistry, offering an interdisciplinary approach to understanding deep-sea life. Students should expect to engage with complex scientific data, develop critical thinking skills and contribute to discussions on the implications of human activities such as deep-sea mining on these fragile ecosystems. RELEVANCE AND APPLICATION. The study of hydrothermal vents is crucial for understanding the Earth's geochemistry, deep-sea ecology and the potential for life beyond our planet. By the end of the course, students will have gained a deep understanding of the interconnectedness of biological, chemical and geological systems in extreme environments. This knowledge has broad applications, from advancing marine conservation efforts to informing sustainable mining practices. Additionally, the analytical skills developed in this course, such as interpreting complex data sets and conducting literature reviews, will be valuable in future academic research, environmental consulting and positions within scientific or governmental organizations. The course also fosters a deeper appreciation for how oceanography, biology and chemistry intersect in real-world contexts, preparing students to engage in discussions on environmental policy and science communication. KEY TOPICS AND THEMES. Key topics include the formation of hydrothermal vent systems at mid-ocean ridges, the chemical composition of vent fluids and their spatiotemporal variability, the ecology of vent organisms and the role of microbial symbioses in sustaining vent ecosystems. Students will also study the impact of hydrothermal plumes on ocean chemistry and marine life, the technologies used to study vent environments and the ecological implications of anthropogenic activities such as deep-sea mining. Themes of interdisciplinary integration, sustainability and the exploration of life in extreme environments will guide the course structure, with opportunities for students to explore the latest research and real-world applications. Prerequisite: OCNG 251 ; BIOL 112 ; CHEM 120 ; junior or senior classification or approval of instructor.